void fling(int start, int velocity, int min, int max, int over) {
mOver = over;
mFinished = false;
mCurrVelocity = mVelocity = velocity;
mDuration = mSplineDuration = 0;
mStartTime = AnimationUtils.currentAnimationTimeMillis();
mCurrentPosition = mStart = start;
if (start > max || start < min) {
startAfterEdge(start, min, max, velocity);
return;
}
mState = SPLINE;
double totalDistance = 0.0;
if (velocity != 0) {
mDuration = mSplineDuration = getSplineFlingDuration(velocity);
totalDistance = getSplineFlingDistance(velocity);
mPm.cpuBoost(mDuration * 1000);
}
mSplineDistance = (int) (totalDistance * Math.signum(velocity));
mFinal = start + mSplineDistance;
// Clamp to a valid final position
if (mFinal < min) {
adjustDuration(mStart, mFinal, min);
mFinal = min;
}
if (mFinal > max) {
adjustDuration(mStart, mFinal, max);
mFinal = max;
}
}
public boolean onTouchEvent(MotionEvent ev) {
if (mInEditMode) {
return false;
}
final int action = ev.getAction();
int x, y;
// A lot of stuff is about to happen. Lets get ready.
mPm.cpuBoost(750000);
switch (action) {
case MotionEvent.ACTION_DOWN:
// Log.d("KeyButtonView", "press");
mDownTime = SystemClock.uptimeMillis();
setPressed(true);
if (mCode == KeyEvent.KEYCODE_DPAD_LEFT || mCode == KeyEvent.KEYCODE_DPAD_RIGHT) {
sendEvent(
KeyEvent.ACTION_DOWN,
KeyEvent.FLAG_VIRTUAL_HARD_KEY | KeyEvent.FLAG_KEEP_TOUCH_MODE,
mDownTime,
false);
} else if (mCode != 0) {
sendEvent(KeyEvent.ACTION_DOWN, 0, mDownTime);
} else {
// Provide the same haptic feedback that the system offers for virtual keys.
performHapticFeedback(HapticFeedbackConstants.VIRTUAL_KEY);
}
if (supportsLongPress()) {
removeCallbacks(mCheckLongPress);
postDelayed(mCheckLongPress, ViewConfiguration.getLongPressTimeout());
}
break;
case MotionEvent.ACTION_MOVE:
x = (int) ev.getX();
y = (int) ev.getY();
setPressed(
x >= -mTouchSlop
&& x < getWidth() + mTouchSlop
&& y >= -mTouchSlop
&& y < getHeight() + mTouchSlop);
break;
case MotionEvent.ACTION_CANCEL:
setPressed(false);
if (mCode != 0) {
sendEvent(KeyEvent.ACTION_UP, KeyEvent.FLAG_CANCELED);
}
if (supportsLongPress()) {
removeCallbacks(mCheckLongPress);
}
break;
case MotionEvent.ACTION_UP:
final boolean doIt = isPressed();
setPressed(false);
if (mCode != 0) {
if (doIt) {
sendEvent(KeyEvent.ACTION_UP, 0);
sendAccessibilityEvent(AccessibilityEvent.TYPE_VIEW_CLICKED);
playSoundEffect(SoundEffectConstants.CLICK);
} else {
sendEvent(KeyEvent.ACTION_UP, KeyEvent.FLAG_CANCELED);
}
} else {
// no key code, just a regular ImageView
if (doIt && !mPerformedLongClick) {
performClick();
}
}
if (supportsLongPress()) {
removeCallbacks(mCheckLongPress);
}
mPerformedLongClick = false;
break;
}
mHandler.post(mNavButtonDimActivator);
return true;
}
